Surrey · England
Sand mastic for sash & case windows in Lyne, Surrey
Sand mastic for Lyne and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Gaps where the frame meets the masonry
- Cracked mastic round a front door frame
- Failed mastic on an exposed elevation
Keeping the joints in good condition
After the cure time, these simple habits help:
- Plan mastic work ahead of painting
- Make sure water runs off the sill
- Ask the planning authority about consent for listed or conservation-area homes
- Go gently near the mastic when preparing windows
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
About our sand mastic in Lyne
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. We work on brick reveals, stone surrounds and period & listed homes, and people most often call us about patchy fillers round a sash window and wind and rain getting in round a sash window.
Somewhere as small as Lyne, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
All our work is covered by a 12-month guarantee.
- Location
- Lyne (KT16)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Quotes for sand mastic in Lyne
For a quick quote, just ask. The main things that affect it are:
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
- The number of rooms or windows
- Whether the work is at height
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
What to tell us for a quote
You don’t need to know the technical terms. Just tell us:
- What’s wrong with the joints now
- Photos by email, if that is easy
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
For sand mastic in Lyne, phone 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
Windows and doors in Lyne
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Botleys Mansion (about 1 mile south) are a reminder that the area around Lyne has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Chertsey station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Schools such as Lyne and Longcross CofE Aided Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. For an older house near a landmark such as Church of Holy Trinity, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Lyne is about 3 miles south of Egham, in Surrey. We carry out sand mastic for homeowners, landlords and businesses in Lyne and the surrounding area, as part of our work across Surrey. Across Surrey, we cover 395 places, and Lyne is one of them. Reading is on our list too, about 19 miles from Lyne.
We work across KT16 for sand mastic. Whether your property is on Almners Road, Pantiles Close and Lyne Lane or anywhere close by, we can help. Other places close to Lyne include Chertsey (1 mile east), Trumps Green (2 miles west), Ottershaw (2 miles south), Stonehill (2 miles south-west) and Row Town (2 miles south-east). Larger places within reach include Guildford (10 miles south), Woking (5 miles south), Camberley (9 miles south-west), Epsom (12 miles east), Ewell (12 miles east) and Egham (3 miles north).
Near you in Lyne
In Lyne, that means homes and buildings near White Lodge Children's Centre, Salesian School and Riverside Walk. Lyne’s nearest station is Chertsey station, about 1.2 miles east. Well-known places in the area include Spelthorne Museum (3.3 miles north) and St. Peter's Hospital (0.8 miles south-east). The countryside around Lyne includes St Ann's Hill and St Ann's Lake.
Different surfaces, different methods
Period and listed homes
Many older homes were built with sand mastic round the windows. On listed buildings, check with your planning authority first.
Timber door frames
Door frames get knocked and soaked, so their mastic can fail sooner. It’s renewed by hand.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Questions from Lyne
Will you come out to Lyne?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Lyne in your area for sand mastic?
Yes, Lyne is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.
Are you fully insured?
Yes. Mr Mastic is fully insured.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first.
How much does sand mastic cost in Lyne?
Size, access and the old material all affect the cost. Call for a quick quote.
Do you work for landlords and businesses?
Yes. We work in homes, commercial premises and hotels, and we are fully insured.
I rent my home. Can I book you?
Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.
Do I need permission for sand mastic on a listed building?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like but the decision is theirs.
What we cannot put right
A few problems are outside what sealant work can do:
- Masonry that needs repairing
- Putty and glazing repairs
- Decisions on consent for listed homes
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Brick reveals
- Tenement windows
- Timber door frames
- Period & listed homes
- Stone surrounds
- Sash and case windows
Also in Lyne
What we do, step by step
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours per window, depending on the condition of the joints and we leave things clean and tidy. In a small place like Lyne, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- Tell us if parking is tricky
- Clear items away from the joints we are working on
- Mention any sign-in or site rules at work premises
Getting a quote
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand.
Related advice
Leave it or put it right?
Filling over old, loose mastic does not last. We remove the loose material first so the new work lasts. Older cottages and farmhouses around Lyne can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and give you a clear quote before we start.
Why book with us
- Trusted Arbo and Everbuild sealants
- Homes, businesses and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- More than 20 years in sealant work
Take a look at how sealant jobs are priced or customer reviews.